According to the police report, a co-worker threw two life rings and a floating vest into the ocean in an attempt to save Cooper. A second worker heard Cooper screaming and noticed he wasn't wearing a vest.

Witnesses told police Cooper went under before reaching any of the lifesaving devices, the report said.

News4Jax contacted the Atlanta-based Archer Western to learn more about its safety procedures. It wasn't clear if the company ensures its workers are following OSHA rules, which include having them wear a life vest at all times.

OSHA records show the company had several safety violations in the past 10 years, including in Feb. 2017, when two workers were killed in Miami after a concrete barrier fell. The company was fined and is contesting that ruling.

News4Jax is also waiting to hear back from the Florida Department of Transportation, which contracted the company.